Coastal Waters Forecast
Issued by NWS Boston, MA

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FZUS51 KBOX 202316
CWFBOX

Coastal Waters Forecast
National Weather Service Boston/Norton MA
716 PM EDT Fri Apr 20 2018

Coastal waters from the Merrimack River MA to Watch Hill RI out to
25 NM

ANZ200-211200-
716 PM EDT Fri Apr 20 2018

.Synopsis for Massachusetts and Rhode Island coastal waters...
High pressure will build over the waters this weekend lasting  into
Monday, then shifting offshore on Tuesday. Low pressure will  move
north along the eastern seaboard Tuesday night and Wednesday,
lifting over the waters on Thursday.

For information on possible hazardous weather beyond the 24-36
hour forecast period, please visit www.weather.gov/boston and
follow the Current Hazards link above the map on the left.

$$

ANZ250-211200-
Coastal waters east of Ipswich Bay and the Stellwagen Bank
National Marine Sanctuary-
716 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Seas
around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft.
.MON...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 4 ft.
.TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.TUE NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. A chance of rain.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 7 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ251-211200-
Massachusetts Bay and Ipswich Bay-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas around 2 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Gusts up to 20 kt in the
evening. Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...NW winds 5 to 10 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.WED...SE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft. Rain likely.
.WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ231-211200-
Cape Cod Bay-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
.SAT NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming E in the afternoon. Seas
around 2 ft.
.SUN NIGHT...S winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less.
.MON...N winds around 5 kt, becoming SE around 5 kt in the
afternoon. Seas 1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...SW winds 5 to 10 kt with gusts up to 20 kt. Seas around
2 ft.
.TUE NIGHT...S winds 5 to 10 kt. Seas around 2 ft. A chance of
rain.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
3 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
2 to 4 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ254-211200-
Coastal waters from Provincetown MA to Chatham MA to Nantucket MA
out 20 nm-
716 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Seas 2 to 4 ft.
.SAT NIGHT...SW winds around 5 kt, becoming NW after midnight.
Seas around 2 ft.
.SUN...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...N winds 5 to 10 kt, becoming NE in the afternoon. Seas
around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to
5 ft. Rain likely.
.WED NIGHT...SE winds 15 to 20 kt with gusts up to 30 kt. Seas
5 to 8 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ255-211200-
Coastal Waters extending out to 25 nm South of Marthas Vineyard
and Nantucket-
716 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.SAT NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft.
.SUN...NW winds 5 to 10 kt, becoming W in the afternoon. Seas
around 2 ft.
.SUN NIGHT...W winds 5 to 10 kt. Seas around 2 ft.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to
7 ft. Rain likely.
.WED NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas
7 to 10 ft. A chance of rain.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ256-211200-
Coastal Waters from Montauk NY to Marthas Vineyard extending out
to 20 nm South of Block Island-
716 PM EDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT SATURDAY...

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to
5 ft.
.SAT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SAT NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, becoming
N 5 to 10 kt after midnight. Seas 2 to 3 ft.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas 2 to 3 ft.
.MON...N winds 5 to 10 kt, becoming SE in the afternoon. Seas
around 2 ft.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 3 ft. A chance of rain.
.WED...SE winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to
8 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
9 to 12 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ232-211200-
Nantucket Sound-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W
5 to 10 kt in the afternoon. Seas around 2 ft.
.SAT NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...N winds around 5 kt, becoming SE in the afternoon. Seas
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...S winds 10 to 15 kt. Seas around 2 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.WED NIGHT...SE winds 15 to 20 kt with gusts up to 25 kt. Seas
3 to 5 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ233-211200-
Vineyard Sound-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
3 ft.
.SAT...NW winds around 10 kt with gusts up to 20 kt, becoming W
in the afternoon. Seas around 2 ft.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...N winds 5 to 10 kt, becoming S in the afternoon. Seas
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt. Seas 1 foot or less.
.TUE NIGHT...S winds 10 to 15 kt. Seas around 2 ft. A chance of
rain.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
4 to 6 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ234-211200-
Buzzards Bay-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas
around 2 ft.
.SAT...NW winds around 10 kt with gusts up to 20 kt, becoming W
in the afternoon. Seas around 2 ft.
.SAT NIGHT...W winds 5 to 10 kt, becoming NW after midnight. Seas
1 foot or less.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less.
.SUN NIGHT...SW winds 5 to 10 kt, becoming NW after midnight.
Seas 1 foot or less.
.MON...N winds around 5 kt, becoming S in the afternoon. Seas
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.TUE...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or
less.
.TUE NIGHT...S winds 5 to 10 kt. Seas 1 foot or less. A chance of
rain.
.WED...SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to
4 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 20 kt. Seas
2 to 4 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ235-211200-
Rhode Island Sound-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W in
the afternoon. Seas 2 to 3 ft.
.SAT NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.SUN...NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft.
.SUN NIGHT...SW winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas around 2 ft.
.MON...N winds 5 to 10 kt, becoming S in the afternoon. Seas
around 2 ft.
.MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. A chance of
rain.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
5 to 8 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ237-211200-
Block Island Sound-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to
4 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, becoming W in
the afternoon. Seas around 2 ft.
.SAT NIGHT...W winds 5 to 10 kt, becoming N after midnight. Seas
around 2 ft.
.SUN...NW winds around 5 kt, becoming SW 10 to 15 kt in the
afternoon. Seas around 2 ft.
.SUN NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after
midnight. Seas around 2 ft.
.MON...N winds 5 to 10 kt, becoming S in the afternoon. Seas
1 foot or less.
.MON NIGHT...S winds 5 to 10 kt. Seas around 2 ft.
.TUE...S winds 5 to 10 kt. Seas around 2 ft.
.TUE NIGHT...SE winds 10 to 15 kt. Seas around 2 ft. Rain likely.
.WED...SE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to
6 ft. Rain likely.
.WED NIGHT...SE winds 10 to 15 kt with gusts up to 25 kt. Seas
5 to 8 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ230-211200-
Boston Harbor-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 10 to 15 kt with gusts up to 25 kt. Waves
around 2 ft.
.SAT...NW winds 10 to 15 kt with gusts up to 20 kt, diminishing
to 5 to 10 kt in the afternoon. Waves around 2 ft.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...NW winds 5 to 10 kt, becoming W in the afternoon. Waves
1 foot or less.
.SUN NIGHT...NW winds around 5 kt. Waves 1 foot or less.
.MON...NW winds around 5 kt, becoming SE in the afternoon. Waves
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE NIGHT...S winds 5 to 10 kt. Waves 1 foot or less. A chance
of rain.
.WED...SE winds 5 to 10 kt. Waves around 2 ft. Rain likely.
.WED NIGHT...E winds 5 to 10 kt. Waves around 2 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

ANZ236-211200-
Narragansett Bay-
716 PM EDT Fri Apr 20 2018

.TONIGHT...NW winds 5 to 10 kt with gusts up to 20 kt. Waves
around 2 ft.
.SAT...NW winds 5 to 10 kt. Gusts up to 20 kt in the morning.
Waves 1 foot or less.
.SAT NIGHT...NW winds 5 to 10 kt. Waves 1 foot or less.
.SUN...NW winds around 5 kt, becoming W in the afternoon. Waves
1 foot or less.
.SUN NIGHT...W winds 5 to 10 kt, becoming NW after midnight.
Waves around 2 ft.
.MON...N winds around 5 kt, becoming S in the afternoon. Waves
1 foot or less.
.MON NIGHT...SW winds 5 to 10 kt. Waves 1 foot or less.
.TUE...S winds 5 to 10 kt. Waves around 2 ft.
.TUE NIGHT...S winds 5 to 10 kt. Waves around 2 ft. A chance of
rain.
.WED...SE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to
4 ft. Rain likely.
.WED NIGHT...SE winds 5 to 10 kt with gusts up to 20 kt. Waves
2 to 4 ft. Rain likely.

Seas are reported as significant wave height, which is the
average of the highest third of the waves. Individual wave
heights may be more than twice the significant wave height.

$$

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